Bacillus subtilis Y1336 | Biological control of soilborne diseases

Introduction

• Y1336 is a patented Bacillus subtilis strain from Biontech in Taiwan.
• The source describes two formulations, BIOBAC WP and BIOSOL SC. It lists BIOBAC WP registrations in Brazil, Japan, Vietnam, China, Taiwan, Turkey, Morocco, Tunisia, Indonesia, Thailand, the Philippines, Myanmar, Korea and Chile, with a viable count of ≥ 1x10^9 CFU/g. It also lists BIOSOL SC at ≥ 1x10^9 CFU/ml, registered in Taiwan and mainland China. The source labels the latter as “WP formulation BIOSOL SC”; the original illustration is retained for reference.
• General applications for Bacillus subtilis Y1336, as shown in the original table:

Bacillus subtilis strain Y1336 cultured on nutrient agar in a Petri dish.

Y1336 modes of action

Antibiosis and competition

• Antibiosis
• Competition
• Competition during proliferation
  1. Competition for nutrients
  2. Competition for space
• Pathogens

Growth and yield promotion

• Increased yield
• Growth promotion
• Systemic acquired resistance (SAR)
• Growth-promoting substances, antimicrobial agents and enzymes
  1. Pathogen suppression
  2. Increased yield
  3. SAR induction
• Nematodes